Scientific American 434 JurE 5, 1909. … Batchelor 922,557 to40 horse-power; speed, 1 to 50 miles per hour; It's free. Robert Hicks. St. Louis, Mo. because it filters just as spring water is filtered—t rough porous Pail holder, milk, T. N. •ium 922,621 Lambert friction (mostefficient) transmission; single rock which leaves all impurities…
Lens · Machine · Inches · Motor · American supplement · Scientific American · Square foot · Sewing machine · Carbon filament · Electric current · York city · American supplements · Reinforced concrete · Three times
Internet Archive · Public domain (published before 1931). Free to use for anything.